Top pic is unclear but looks like shirring.Quite extensive, usually it is more subtle. Look it up. Not a 'mistake' or creasing.
I won't say for sure but I do not think you are eliminating that if it is and if you are, not easily.

what would be the reason for doing this? decorative? I'll take another pic or two when I get home to give you a better idea of what it looks like. not a fan. it feels like there's wool (or some material) coming out over the shoulder seam to create the look.